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/*
* $Id$
*/
#include <rtems.h>
#include <stdlib.h>
#define mips_get_cause( _cause ) \
do { \
asm volatile( "mfc0 %0, $13; nop" : "=r" (_cause) : ); \
} while (0)
#define CALL_ISR(_vector) \
do { \
if ( _ISR_Vector_table[_vector] ) \
(_ISR_Vector_table[_vector])(_vector); \
else \
mips_default_exception(_vector); \
} while (0)
void mips_default_exception( int vector )
{
printk( "Unhandled exception %d\n", vector );
rtems_fatal_error_occurred(1);
}
void mips_vector_isr_handlers( void )
{
unsigned int sr;
unsigned int cause;
unsigned int i;
unsigned int mask;
mips_get_sr( sr );
mips_get_cause( cause );
cause &= (sr & SR_IMASK);
cause >>= CAUSE_IPSHIFT;
/* XXX check this and think about it. */
for ( i=1, mask=0x80 ; i<=8 ; i++, mask >>= 1 ) {
if ( cause & mask )
CALL_ISR( 8 - i );
}
}
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